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- # Pleroma: A lightweight social networking server
- # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
- # SPDX-License-Identifier: AGPL-3.0-only
-
- defmodule Pleroma.Config.TransferTask do
- use Task
-
- alias Pleroma.Config
- alias Pleroma.ConfigDB
- alias Pleroma.Repo
-
- require Logger
-
- @type env() :: :test | :benchmark | :dev | :prod
-
- defp reboot_time_keys,
- do: [
- {:pleroma, :hackney_pools},
- {:pleroma, :shout},
- {:pleroma, Oban},
- {:pleroma, :rate_limit},
- {:pleroma, :markup},
- {:pleroma, :streamer},
- {:pleroma, :pools},
- {:pleroma, :connections_pool}
- ]
-
- defp reboot_time_subkeys,
- do: [
- {:pleroma, Pleroma.Captcha, [:seconds_valid]},
- {:pleroma, Pleroma.Upload, [:proxy_remote]},
- {:pleroma, :instance, [:upload_limit]},
- {:pleroma, :gopher, [:enabled]}
- ]
-
- def start_link(restart_pleroma? \\ true) do
- load_and_update_env([], restart_pleroma?)
- if Config.get(:env) == :test, do: Ecto.Adapters.SQL.Sandbox.checkin(Repo)
- :ignore
- end
-
- @spec load_and_update_env([ConfigDB.t()], boolean()) :: :ok
- def load_and_update_env(deleted_settings \\ [], restart_pleroma? \\ true) do
- with {_, true} <- {:configurable, Config.get(:configurable_from_database)} do
- # We need to restart applications for loaded settings take effect
-
- {logger, other} =
- (Repo.all(ConfigDB) ++ deleted_settings)
- |> Enum.map(&merge_with_default/1)
- |> Enum.split_with(fn {group, _, _, _} -> group in [:logger, :quack] end)
-
- logger
- |> Enum.sort()
- |> Enum.each(&configure/1)
-
- started_applications = Application.started_applications()
-
- # TODO: some problem with prometheus after restart!
- reject = [nil, :prometheus, :postgrex]
-
- reject =
- if restart_pleroma? do
- reject
- else
- [:pleroma | reject]
- end
-
- other
- |> Enum.map(&update/1)
- |> Enum.uniq()
- |> Enum.reject(&(&1 in reject))
- |> maybe_set_pleroma_last()
- |> Enum.each(&restart(started_applications, &1, Config.get(:env)))
-
- :ok
- else
- {:configurable, false} -> Restarter.Pleroma.rebooted()
- end
- end
-
- defp maybe_set_pleroma_last(apps) do
- # to be ensured that pleroma will be restarted last
- if :pleroma in apps do
- apps
- |> List.delete(:pleroma)
- |> List.insert_at(-1, :pleroma)
- else
- Restarter.Pleroma.rebooted()
- apps
- end
- end
-
- defp merge_with_default(%{group: group, key: key, value: value} = setting) do
- default = Config.Holder.default_config(group, key)
-
- merged =
- cond do
- Ecto.get_meta(setting, :state) == :deleted -> default
- can_be_merged?(default, value) -> ConfigDB.merge_group(group, key, default, value)
- true -> value
- end
-
- {group, key, value, merged}
- end
-
- # change logger configuration in runtime, without restart
- defp configure({:quack, key, _, merged}) do
- Logger.configure_backend(Quack.Logger, [{key, merged}])
- :ok = update_env(:quack, key, merged)
- end
-
- defp configure({_, :backends, _, merged}) do
- # removing current backends
- Enum.each(Application.get_env(:logger, :backends), &Logger.remove_backend/1)
-
- Enum.each(merged, &Logger.add_backend/1)
-
- :ok = update_env(:logger, :backends, merged)
- end
-
- defp configure({_, key, _, merged}) when key in [:console, :ex_syslogger] do
- merged =
- if key == :console do
- put_in(merged[:format], merged[:format] <> "\n")
- else
- merged
- end
-
- backend =
- if key == :ex_syslogger,
- do: {ExSyslogger, :ex_syslogger},
- else: key
-
- Logger.configure_backend(backend, merged)
- :ok = update_env(:logger, key, merged)
- end
-
- defp configure({_, key, _, merged}) do
- Logger.configure([{key, merged}])
- :ok = update_env(:logger, key, merged)
- end
-
- defp update({group, key, value, merged}) do
- try do
- :ok = update_env(group, key, merged)
-
- if group != :pleroma or pleroma_need_restart?(group, key, value), do: group
- rescue
- error ->
- error_msg =
- "updating env causes error, group: #{inspect(group)}, key: #{inspect(key)}, value: #{
- inspect(value)
- } error: #{inspect(error)}"
-
- Logger.warn(error_msg)
-
- nil
- end
- end
-
- defp update_env(group, key, nil), do: Application.delete_env(group, key)
- defp update_env(group, key, value), do: Application.put_env(group, key, value)
-
- @spec pleroma_need_restart?(atom(), atom(), any()) :: boolean()
- def pleroma_need_restart?(group, key, value) do
- group_and_key_need_reboot?(group, key) or group_and_subkey_need_reboot?(group, key, value)
- end
-
- defp group_and_key_need_reboot?(group, key) do
- Enum.any?(reboot_time_keys(), fn {g, k} -> g == group and k == key end)
- end
-
- defp group_and_subkey_need_reboot?(group, key, value) do
- Keyword.keyword?(value) and
- Enum.any?(reboot_time_subkeys(), fn {g, k, subkeys} ->
- g == group and k == key and
- Enum.any?(Keyword.keys(value), &(&1 in subkeys))
- end)
- end
-
- defp restart(_, :pleroma, env), do: Restarter.Pleroma.restart_after_boot(env)
-
- defp restart(started_applications, app, _) do
- with {^app, _, _} <- List.keyfind(started_applications, app, 0),
- :ok <- Application.stop(app) do
- :ok = Application.start(app)
- else
- nil ->
- Logger.warn("#{app} is not started.")
-
- error ->
- error
- |> inspect()
- |> Logger.warn()
- end
- end
-
- defp can_be_merged?(val1, val2) when is_list(val1) and is_list(val2) do
- Keyword.keyword?(val1) and Keyword.keyword?(val2)
- end
-
- defp can_be_merged?(_val1, _val2), do: false
- end
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